Thursday, July 20, 2017

3-D imaging of surface chemistry in confinement

An optical imaging tool has been developed to visualize surface chemistry in real time. Researchers imaged the interfacial chemistry in the microscopically confined geometry of a simple glass micro-capillary. The glass is covered with hydroxyl (-OH) groups that can lose a proton -- a much-studied chemical reaction that is important in geology, chemistry and technology. A 100-micron long capillary displayed a remarkable spread in surface OH bond dissociation constant of a factor of a billion.

from Geochemistry News -- ScienceDaily

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